Kafka Playground

• Started Controller

• Started Broker

• Produced Messages
• Consumed Messages
• Learned Partitions
• Multiple Partitions
• Consumer Groups

Spring Kafka

Producer Service

Notification Service

+------------------+
|   User Service   |
+------------------+
        |
        | Publish UserRegisteredEvent
        V
+------------------+
|      Kafka       |
| user-registered  |
+------------------+
        |
        | Consume Event
        V
+----------------------+
| Notification Service |
+----------------------+
        |
        V
 Send Welcome Email

• Order send successfully - Message

• Welcome Email to + order

• Created Topic Orders

Payment Service

Client | V Order Service | V Kafka Topic : orders | V Payment Service | V Kafka Topic : payments | V Notification Service

Create payments topic

bin\windows\kafka-topics.bat --create --topic payments --bootstrap-server localhost:9092 --partitions 3 --replication-factor 1

--> Created topic payments.

PS C:\kafka> bin\windows\kafka-topics.bat --list --bootstrap-server localhost:9092 --> order-created orders payments

Inventory Service